main machine is 15.6 leap.
some usb based ethernet with 5gigabit ethernet realtek rtl 8157 based device. plugging in it generated
dmesg -e
messages okay. shows mac address and the rtl8157 device information and manufacturer and renaming device manes ethX back and forth and all. lsmod shows cdc based stuff (driver) I have never seen before, not much of an expert.
network manager only shows the wifi device and the machines built in other realtek (gigabit ethernet, pci based) device.
ip li
shows this new ethX name and the MAC address from the dmesg -e lines but network manager does not show this additional network device or I am too noobish to make this work, had thought this would be some automatic addtl device in the network manager list (lo, eth0 (built-in), wifi)
on some current opensuse slowroll though, this actually works normall.
this is all mostly the same there, except the networkmanager there shows (only wired ethernet device on that machine) the device there and it brings up when plugging in a network cable and ipv4 and ipv6 work all fine immediately from there.
any hints? is leap 15.6 not yet capable and compatible with this realtek 8157 based device, is some more driver needed except for that cdc stuff, such as in the old days with older realtek hardware (r8169 and such)? I have never messed with drivers beyond whats what always inside the kernel coming from a distro vendor, or not really much.
thanks for all the help.
Why not posting the output of the commands you mentioned?
jourbnalctl | grep -Ei 'net|r815|realtek/lan'
and
/usr/sbin/hwinfo --netcard
maybe you have to install hwinfo first.
sorry forgot to wrote that before, hwinfo netcard didnt show this device on the affected 15.6, it showed only the wifi and the built-in realtek gigabitethernet device. on slowroll it showed all devices, this usb realtek 8157 was detected and shown by hwinfo normally.
on leap 15.6: hwinfo netcard does not show any addtl device when plugged in, ip li shows a new entry with the mac address from dmesg -e
and also the networkmanager configuration areas only stay at devices lo, eth0 and wlan0, no new addtl device shows that that would become usable by networkmanager.
maybe some udev stuff (rules?) come into play here, something rings a bell? I have never worked on udev stuff before.
on the leap 15.6 system, when I go into the yast and then into the network settings gui, it complains that everything is configured via networkmanager though, greyed, but I can see the overview tab there. listing the wifi and the built-in pci ethernet device all fine, but the additional usb 5gigabitethernet realtek device is never listed there even after a yast (module) restart.
on the slowroll device even this 5gigabitethernet usb device gets listed there.
both, on the leap 15.6 and the slowroll, dmesg -e , shows, when plugging in this device, that it gets handled by the cdc_ncm driver. lsmod lists also various interdependent cdc drivers and entries and so forth.
It’s on you to post here what was required.
Otherwise nobody can help.
This is wrong:
journalctl | grep -Ei 'net|r815|realtek/lan'
I mean this one:
journalctl | grep -Ei 'net|r815|realtek|lan'
my fault.
Also post:
lsusb
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its all there the stuff appears on the logs, i cant post privacy relevant stuff here. to me the result means leap 15.6 is not compatible with cdc or at least this device. maybe this belongs to a bugreport instead. thanks.
So for me this is resolved…
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